학술논문

Mathematical Modeling of Drying Processes Using Methods of the Nonequilibrium Thermodynamics and Percolation Theory.
Document Type
Article
Source
Drying Technology. Jul/Aug2007, Vol. 25 Issue 7/8, p1297-1304. 8p. 2 Graphs.
Subject
*MATHEMATICAL models
*MASS transfer
*PHASE transitions
*THERMODYNAMICS
*PARTIAL differential equations
*BESSEL functions
*CALCULUS
Language
ISSN
0737-3937
Abstract
A twofold refinement of the basic mathematical model for describing a coupled heat and mass transfer taking place in porous media is presented. The common application of irreversible thermodynamics and fluctuation theory of phase transitions is proposed for calculating the moisture level and temperature. Instead of parabolic partial differential equations, hyperbolic type partial differential equations are used. The relaxation time constants, whose percolation state-dependence is also taken into account, are incorporated into this formalism. Some possible new research domains in mathematical and statistical physics are also indicated. [ABSTRACT FROM AUTHOR]